This isn't a regular identification page but a listing of the
differences between my Spanish & US-issued 1st Edition Jem/Jerrica.

doll: The Made in Spain Jem doll closely resembles the regular US China & Hong Kong made 1st Edition Jem/Jerrica dolls. Her head is very much like a Made in China star-capped Jem head, with the exception of not having star-caps, otherwise the markings and make up scheme are the same.

The
earrings also stuck out a little more than a regular US-issued doll,
not sure if that's peculiar to my doll or not. Otherwise her head looks
a lot like a China-made doll and has the same markings.

The skintone of the Spanish-made Jem/Jerrica has a distinctly beige
tone to it - it's not very noticeable unless right next to a Made in
China or Hong Kong doll. Mine can not sit
without her pelvis making a "popping" noise (similar to bending the knees).
Overall it seemed as though the pelvis was just in wrong somehow- she even
has a slightly pot-bellied appearance. I'm not sure if this is typical
of Spanish dolls or if I just got a particularly bad one.

The
easiest way to tell if you have a Spanish doll is to simply look at her
markings on her back! Notice she has the smaller battery cover.

The most
obvious difference in her body is the feet- you will notice they are arched
more than the average Jem doll's (far left is the Spanish foot)

belt - the brocade is rotated 90 degrees (like the Mexican belt) but otherwise looks comparable to a Hong Kong or China made doll's belt.

Dress
- the Spanish one (on the left) looks very much like a Made in China
dress - slightly bigger, paler and smoother material, compared to the
Hong Kong dress on the right. Like the China dresses, it closes
on the right.

shoes; If I found the Spanish ones loose, I wouldn't be able to differentiate them from a regular pair of 1st Edition Jem/Jerrica thick-sided shoes. These Jem ones aren't rubbery like the Jerrica shoes are.

hair picks; Neither
Spain or Mexico have the iridescent sheen. The Spanish one has
the TM by the logo, Mexican does not. The Mexican is kind of
pearly, Spanish isn't - it kinda reminds me of a bar of soap in terms
of colour ;)

sunglasses: The regular (China/Hong Kong) 1st Edition Jem/Jerrica
ones can vary, and be more like the Spanish ones in shape and colour
too. The Mexican ones, yet again, are the oddballs here,
being much paler and of a different shape entirely (look at the
nose rest area to see what I mean).

stand: my Spanish Jem came with the same stand as my Italian 1st issue Aja doll, it has the TM mark.

zapatos de salón;
^_^ Whatever this translate to, it's Jerrica's funny rubbery shoes.
This is the main difference that I know of between Spanish and
US/Hong Kong dolls, they are pretty neat!

Items not listed in Hasbro's box contents (not all dolls came with the same posters and inserts, this is a listing of what I got personally with my dolls)

cassette tapeIn Spain, Jem/Jerrica came with a
tape too. I'm not sure if they all did or not, mine is twist-tied
right into the backer, it's not an in-store promotion. Other than licensing information, says nothing
but the Jem logo and Cara A/Cara B. The songs are in English (mostly),
the dialogue is in Spanish.Side A:A man reciting the Jem story in Spanish, interspersed
with some Jem and Misfits songs (shown below), some have clapping and/or
introductions during them.Jem StoryOutta My WayOnly the BeginningWinning is EverythingJem Theme (short, in Spanish! Different from the
Mexican one)Side B:Jem Theme (long version)Like A DreamClick/ClashTwilight in ParisGettin' Down to BusinessI got My Eye On YouDeceptionToo Close

Box, liner and inserts not previously noted in Hasbro's box contents above. *not
all fashions came with the same posters and inserts, this is a listing
of what I got personally with the doll listed on this page.